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| author | Daniel Borkmann <[email protected]> | 2016-02-19 22:05:26 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2016-02-22 03:07:10 +0000 |
| commit | 2f72959a9c1260ade234f353ccca91118151af66 (patch) | |
| tree | fdd08812be172d834752c55f580889256341e1a9 /net/unix/af_unix.c | |
| parent | bpf: try harder on clones when writing into skb (diff) | |
| download | kernel-2f72959a9c1260ade234f353ccca91118151af66.tar.gz kernel-2f72959a9c1260ade234f353ccca91118151af66.zip | |
bpf: fix csum update in bpf_l4_csum_replace helper for udp
When using this helper for updating UDP checksums, we need to extend
this in order to write CSUM_MANGLED_0 for csum computations that result
into 0 as sum. Reason we need this is because packets with a checksum
could otherwise become incorrectly marked as a packet without a checksum.
Likewise, if the user indicates BPF_F_MARK_MANGLED_0, then we should
not turn packets without a checksum into ones with a checksum.
Signed-off-by: Daniel Borkmann <[email protected]>
Acked-by: Alexei Starovoitov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions